基本解釋[機(jī)械工程]球平均直徑英漢例句雙語例句Self-aligning ball bearings of the mean diameter range are also available with seals (Figure 1.6) and a for-life grease fill.平均直徑變動(dòng)的調(diào)心球承也可帶密封（圖1.6）和一個(gè)終身油脂填充。blog.sina.com.cnmean diameter of a ball更多例句專業(yè)釋義機(jī)械工程球平均直徑